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  • Title: Phytochemical, nutritional and antioxidant characteristics of whitebeam (Sorbus aria) fruits.
    Author: Petkova NT, Ognyanov MH, Vrancheva RZ, Zhelev P.
    Journal: Acta Sci Pol Technol Aliment; 2020; 19(2):219-229. PubMed ID: 32600018.
    Abstract:
    BACKGROUND: Common whitebeam, Sorbus aria (L.) Crantz is an European and Near-Eastern deciduous tree with small red fruits. However, the edible use of this forest fruit is currently not widespread. Also, its nutritional and antioxidative properties remained undiscovered. In this study, the chemical composition and antioxidant properties of common whitebeam fruit were investigated. METHODS: The fruit were collected from Golo Bardo Mountain in Bulgaria. The phytochemical (carotenoids, phenolic compounds, flavonoids), nutritional (moisture, ash, titrable acidity, lipids, proteins, pectin, carbohydrates) and antioxidant activity were evaluated by four assays (DPPH, ABTS, FRAP, and CUPRAC). RESULTS: Sugar analysis demonstrated that only fructose and glucose were detected in the fruit. Pectin content did not exceed 1.30%. Moreover, the fruit had a low lipid content (0.80%). The whitebeam fruit were also characterized as a source of carotenoids (1.69 mg/100 g fresh weight, fw), phenolic compounds (32.42 mg GAE/100 g fw), and flavonoids (20.08 mg QE/100 g fw). Among phenolic acids, only 2,4-dihydrohybenzoic, caffeic, p-coumaric, and sinapic acid were detected. The antioxidant potential of the fruit was from 168.52 mM TE/100 g fw (FRAP) to 244.81 mM TE/100 g fw (CUPRAC assay). CONCLUSIONS: The current research enriched the available information about the nutritional potential and chemical composition of common whitebeam fruit and their low sugar content. The absence of sucrose, together with its high phenolic content, demonstrated the potential of this fruit for future application in food products and supplements.
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